New EM-KMRA radio spectrum analyzer is a unique radio receiver designed for instant disclosure of radio bugs running in wide range of radio frequency in the radio spectrum.EM- KMRA selectively eliminates even strong local TV and radio broadcasting, or mobile and data transmitters, using unique frequency processing combined with extra fast spectrum comparisons. Checked “bugs free” spectrum is stored in the background memory and compared with actual signals every 6 seconds. A new suspicious signal activates a 3-level alarm mechanism. The new signal is also recorded in a separate alarm memory.